Question Pulsating light/wave shader - Car Ambient Light

Hi, I'm new to the Unity Forum and I'm not that familiar with Shader Graph. It would be great if you could help me because I have little time for this project and I'm stuck right now. For a student project we want to recreate an ambient light in a car. So we need a single pulsed light effect to travel along a Pipeline GameObject. This effect should be able to repeat itself, so that several of these pulses/lights can follow one after the other. In addition, the geometric length, the speed of the effect, the basecolor and the light color should be changeable. In the YouTube video or in the picture you can see an example.

I wanted to build this effect with Shader-Graph, I just don't know how to start. I've already searched half the internet, but couldn't find a suitable tutorial. So it would be great if you could help me with that. Many Thanks!